<?  if(isset($error)){?>
    <p style="color: red; text-align: center;" >Логин или пароль введен неверно!</p>
<?}?>



<form action="" method="post">
    <table class="login">
        <tr>
            <th colspan="2">Авторизация</th>
        </tr>
        <tr>
            <td style="text-align: right;">Логин</td>
            <td><input type="text" name="login"></td>
        </tr>
        <tr>
            <td style="text-align: right;">Пароль</td>
            <td><input type="password" name="password"></td>
        </tr>
        <tr>
            <td style="text-align: right;" colspan="2"><input type="submit" value="Войти"               style="width: 160px; height: 30px;" name="btnsubmit"></td>
        </tr>
    </table>    
</form>